Good analysis and insight.

My notions of the observer are not derived from Solipsism, but from modern physics...

I love that an ancient Zen proverb "if a tree falls in the forest and nobody is around to hear it does it make a sound?" Seems to perfectly apply to a concept in modern physics and quantum physics relating to observers and the existence of the universe.

I agree with you last sentiment as well, every time I take entheogens I am humbled, and realize that myself, and humans as a whole, actually have very little idea of what is actually going on...humans have this perception that we have things figured out, yet nobody knows what existence or life actually is...no matter who you are entheogens will show you that you don't know shit.

I think that terence McKenna was right when he said that there are no grounds for believing in anything, and that ultimately belief is a form of infantilism

Below are some miscellaneous articles involving an observer being essential to the universe existing:

-eg